David t



(No Model.)

D.T.LA1\ TE. EUCENT-RIC.

No. 556,680. Patented Mar. 17, 1896;

WITNESSES: INVENTOR,

fimww UNITED STATES DAVID T. LAKE, OF FRANKLIN, PENNSYLVANIA, ASSIGNORTO IV. IN.

OF SAME PLACE.

EMERY d: SON,

PATENT QEEICE.

ECCENTRIC.

SPECIFICATION forming part of Letters Patent No. 556,680, dated March17, 1896. Application filed July 3, 1895. $erial No. 554,786. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, DAVID T. LANE, a citizen of the United States,residing at Franklin, in the county of Venango and State ofPennsylvania, have invented or discovered certain new and usefulImprovements in Eccentrics, of which improvements the following is aspecification.

The invention described herein relates to certain improvements in theconstruction of eccentrics which rotate in, or approximately in,horizontal planes, whereby the adjacent faces of the eccentric and itsstrap may be thoroughly lubricated, and that without material waste ofthe lubricant.

The improvement is more especially adapted for use in oil well pumpingapparatus wherein a number of wells are pumped from a centrally-locatedmotor, power being transmitted from the motor to the several pumps bymeans of an eccentric arranged on a vertical power-shaft and having itsstrap connected by radiating connecting-rods to the pumps.

The invention has for its object the arrangement of an oil-receptacle insuch relation to the eccentric-strap that the oil will tend to flowtherefrom between the adjacent faces of the eccentric and strap.

In the accompanying drawings, forming a part of this specification,Figure 1 is a view, partly in section and partly in elevation, of avertical power-shaft having my improved eccentric applied thereto; andFig. 2 is a top plan view of the same.

In the practice of my invention the eccentric 1, which is adapted to besecured in any suitable or well-known manner on the shaft 2, is providedwith an oil-receptacle arranged in such relation to the bearingfaces ofthe eccentric and strap 3 that the oil will flow between such faces orwill be drawn between them by capillary action. This receptacle ispreferably formed by a rim 4, extending from the lower edge of theeccentric beyond the body of the strap 3, and haxung an upturned flange5 along its outer edge. This rim and flange form around the eccentric anannular recess into which the strap or a portion thereof projects, sothat the bearin -faces of the eccentric and strap will be operating inoil. It is preferred to form the strap with a flange 6, which willproject over the annular oil-receptacle so as to protect the oil fromdust and dirt. The annular recess may be made of such a depth that thestrap will be entirely submerged in the oil if desired.

The rim i, in addition to forming a portion of the oil-receptacle,serves as a support for the strap, holding the same in operativerelation to the eccentric. The strap is adapted to be connected to thepumps by means of rods 7, which have their inner ends pivotally attachedto the strap.

I claim herein as my invention- 1. The combination of an eccentric,provided with an open-topped, annular recess, and a strap surroundingthe eccentric, said recess projecting beyond the strap and extendingaround the eccentric and strap, substantially as set forth.

2. The combination of an eccentric provided with an annular recess and astrap surrounding the eccentric and projecting into the annular recessand provided with a flange extending over the recess, substantially asset forth.

In testimony whereof I have hereunto set my hand.

DAVID '1. LANE.

Witnesses:

WM. B. GRIFEEN, JOHN P.

